My voice got stuck at my throat and I was just standing at the door with my mouth hanging open watching my children fuck each other. This was totally ...nexpected.I never thought that a shy girl like Carol would be fucking someone. But it wasn’t just anyone, it was her brother, her twin brother God damn it!! It was clear that she was enjoying herself and was shouting at her brother to go faster. She had her eyes closed and they were doing it missionary style. I can clearly hear Kevin’s grunts,. She touched my pussy and started fingering it. All I could do was moan and let her do whatever she wishes. She started from one finger and moved her way till three, slowly building up my orgasm.She looked at me and stopped. All this time I didn’t notice she had something in her other hand. She made sure I couldn’t see it. She took the other hand and pushed it back in my panty. She slowly inserted something inside me. She just took out her hand and said that she had put a remote control vibrator. The man’s voice dragged her back to the other monitor. “Now, Supergirl, before you consider anything stupid, if you move anywhere outside that blue box, or damage any of the equipment in that room, 50,000 volts will immediately be pumped into that helmet Agent Danvers is wearing, with predictable results. You are fast, but not faster than the speed of light and there are sensors watching every inch of the border.”“You son of a bitch. If you hurt her, I will...”“Relax. I have no intention of. She knew that in the morning she told the guy she was with it was over that she would cry...but she would be coming back to this. His lips began a downward journey she didnt care to stop as she was loving the attention he was paying her every inch not skipping any of the unimportant areas to reach the gold. Going slowly he was down by her belly and woking slowly to her wet slit that wanted him inside but would be patient for him to drive himself in. he began slowly licking the outside of her.